Answers

Add 90/4 and 60/81

1^st number: 22 2/4, 2^nd number: 60/81

90/4 + 60/81 is 1255/54.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 4 and 81 is 324
   
   Next, find the equivalent fraction of both fractional numbers with denominator 324
2. For the 1st fraction, since 4 × 81 = 324,
   90/4 = 90 × 81/4 × 81 = 7290/324
3. Likewise, for the 2nd fraction, since 81 × 4 = 324,
   60/81 = 60 × 4/81 × 4 = 240/324
4. Add the two like fractions:
   7290/324 + 240/324 = 7290 + 240/324 = 7530/324
5. 7530/324 simplified gives 1255/54
6. So, 90/4 + 60/81 = 1255/54
   In mixed form: 2313/54

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